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Thread: Home A/C recommendation needed.

  1. #16
    Join Date
    Jan 2009
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    35th and greenway
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    Re: Home A/C recommendation needed.

    20degrees is the minimum. And it whatís required. Should be easy to get a 20 degree difference if the house is normal temp.


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  2. #17
    Join Date
    Jan 2007
    Location
    East Mesa
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    2,044

    Re: Home A/C recommendation needed.

    I did some measurements with normal temp gauge. I cooled the house down to 78 at night till the compressor shut off. Then I bumped the thermostat down to 76. With the compressor running I had a 18 degree differential between the intake (upper wall) to the closest vent to the air handler. I'd say the performance is borderline. Probably needs freon and a cleaning. Hoping to get that taken care of this week.
    It's like an LJ... only bigger.

  3. #18
    Join Date
    Jan 2009
    Location
    35th and greenway
    Posts
    5,663

    Re: Home A/C recommendation needed.

    Sounds like your in the right track. With the cooler outside temps and it being 78* you should get a 20+ split easy

    Also try washing out the condenser coil with a hose and try it again


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    MPGs? Real trucks go by GPM...

  4. #19
    Join Date
    Jan 2007
    Location
    East Mesa
    Posts
    2,044

    Re: Home A/C recommendation needed.

    I performed a pretty thorough washing of the coils today. I'm right about 20 degrees with the same measurements and the outlet temp was about 2 degrees cooler. Larger impact than I would have imagined. I pulled both side covers off the compressor, hoping that was not a mistake. The far side had what looked like a large plastic zip tied inside of black foam. It broke, part stayed on the coils and the other part stayed on the cover. I'm hoping that is just there for vibration damping.

    I assume there are coils in the air handler that need to be cleaned as well. Any tips on what process to use? Compressed air?
    It's like an LJ... only bigger.

  5. #20
    Join Date
    Jan 2009
    Location
    35th and greenway
    Posts
    5,663

    Re: Home A/C recommendation needed.

    Water , they do make a cleaner but generally we just use water. The inside coil will be a pain to actually get to the dirty side but some cleaning is better than no cleaning.

    If you have a hose up there it would be a good idea to flush the drain lines too.

    Generally air will knock some dust loose but doesnít do a very good job. You need the water to carry the dirt away


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    MPGs? Real trucks go by GPM...

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